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Fig. A.1

image

Observation and model fits after correcting for interstellar extinction. 2MASS: circles; VVV-DR1: stars; WISE: triangles pointing up; GLIMPSE: sails; MSX: squares; AKARI: diamonds; IRAS: crosses; upper limits: filled triangles pointing down; unconfirmed detection: open triangles pointing down; model: solid line (in case of two models, the solid line represents the brighter and the pointed line the fainter phase (see Sect. 3.2)).

This figure is made of several images, please see below:

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